Sound-reproducing and picture-exhibiting apparatus



April 30,` 1929. A. T. MARSHALL" 1,710,994

SOUND REPRODUCI'NG AND PICTURE EXHIBITING APPARATUS 4 Filed Feb. 9. 192e 2 sheets-sheer April 30, 1929. A. T. MARSHALL SOUND REPRODUCING AAND PICTURE EXHIBITING APPARATUS 'Filed Feb. 9, 1926 2 sheets-sneer UNITED STATES 1,'i`i0,994r 'PA-TENT orricr..

l ALintn'r--clx MARSHALL, or PnTALuMA, cALIFoiiiiIA.'Y

souNn-nnrnonucriio AND 'PICTURE-Examining AiieneiiaATus.'4

' A'Iipicaaon med February 9,1926.' 'serial no. 87,146.

This invention relates to sound-reproduc` ing and-picture 'exhibiting apparatus, and has for its primary object the provision of meanswhereby the microphone of a radio 'circuit is preferably employed fortlie purpose of permittingsound to be distrlbuted simultaneously with the act of projecting pictures of objects or scenes upon 'an exhibit# ing Screen, where the pictures of sa 1d'ob 4jects or scenes will visualy characterize or f depict animated action o V'A- very important object 'of my invention pertains to a novel combination of instru-`- mentalities whereby the amplifying horn of the microphone will serve bothfas a sound distributor and picture exhibitorwithout depreciating' the sound-distributing qualities thereof. l

'Another object of the invention is to pro vide apparatus of this character which will be portable 'and of` a design which fits iti admirably for the purpose o entertainment or for advertising purposes,

I illustrated a single and preferred formof the Y ither home or public for show windows or public places..

Another object of the invention is to pro: vide apparatus'l of this character which is simple and highly ornamental;A

: A still further 'object of the invention is to rovide apparatus having means whereby a strip, fpicture'slide or the like, can be quickly associated'with the sound distributv ing apparatus as the occasion necessitates.

With the above-and other objects in view which 'will appear as the nature of the inivention is better understood, the same consistsin the improved construction and: novel l arrangements of parts which will hereinafter be fully described and particularly pointed out in the claim. Y In the accompanying-drawings has been invention, it being, however, understood that no limitations are necessarily 'made to thej recise structural details therein exhibited,

ut that chan es, alterations and modifications within t e sc ope of the claim may be resorted to when desired.

' Figure 1 is a front elevation of the .apparatus; Figure 2 is a view in side elevation with parts broken away and parts in section; and

Eigure 3 is a view in rear elevation showing the position of 'parts previous to an operative correlation thereof when projecting pictures. Y 1 In order that -those skilled in the art may be sutliciently 'acquainted with the mechanithe sound prothe screen is in spaced relation to the adjasound simultaneous-with the projection of cal details of construction necessary to ractice the invention, I will'refer general y to some parts that are notwholly essential and l in detail -to otherof the parts which are essentiaL'and in this respectI do not wish to be limited to the precise' showingillustrated in the accompanying drawings, vso long as these may not be a de arture from the scope' of the hereto annexe clai1`i1. Therefore, may lrepresent a lsuitable ornamental cabinet or enclosure, and same is preferably provided withfa front wall B and a rear swinging v.door C, the latter mounted on hinges D so thatthe door can occupy either of the posit-ionsshown in Figures 2 and 3.

The front wall of the cabinet 'is provided with an opening E, which rin ths'instance is rectangular:

' Mounted in the cabinet is conventionally illustrated at!) such form' of microphone as is common With-the use of radio receiving 'instruments. This 'microphone' is connected by a sound conveying .tube 6 tothe small end of a-sound amplifying horn 7. The -walls of the horn are relatively lared so that the large end of the horn coincides with the opening E 'and registers therewith, While the small end 'of the horn terminates in spaced relation to the aforementioned swinging d This small end is covered by a panell 8 of clear glass. It will be observed that the 'upoor C.

per end 'of the sound distributing tube 6 opens into the bottom side of the amplifying horn 7 so thatitwill not obstruct an imaginary line of vision drawn longitudinally through the horn centrally of the panel 8. It will also be observed that'the panel 8, by closing the small end of the sound amplifying horn,

compels a projection of the sound toward J CFI However,

and said adjacentv Wallsv of the hornis a sheet or strip of gauze 9*, so that the projection of sound from the large end of the horn will not in any manner be interfered width jvhenthe' microphone 5 is pulsating or functioning.

As previously stated, it is an object of my invention to combine apparatus of the afore to the eyey of an observer in front of the horn' While the sound is audibly distributed. Only for the sake of showing one\way of carrying the invention into practice `dc I emphasise means for carrying this object 1n use, and 1t 1s in this particular `connection that I do not wish tothe limited, asany suitable well-known means ma be `provided for this purpose.

(5l, 'the door of the cabinet A, is used as a support for a picture projecting apparatus which I conventionally illustrate 'at 10. This apparatus may be of any usual well# known typ thatl will .intermittently or progressively draw a fihn strip 11 across the gate 12 the operative presence of aprojecting lenslT It will be observed that this lens extends downward a`nd in confronting relation to anf` inclined mirror'14. It will be further observed that the mirror is in longitudinal alinement with the clear glass panel 8 of the sound amplifying horn 7. A ,L

The picture strip 11 may he ofthe type employing sprocket openings 15 so` that the frames of the strip will intermittently register with the gate 12. of the projecting apparat'us 10. This film strip may be of the endless variety illustrated herein, and in 'such event sameis mounted to pass over guide pulleys 16 on thev inner face of the door C. These pulleys can he removable from their spindles 17, or otherwise suitably formed in some Wellknown manner so that the film .strip 11, at the option ofthe operator, vcan he removed and another one substituted therefor. In lieu of the strip 11 I may usea mechanism for optoleave theopenin'g E of the cabinet by virtue of the gauze strip 9 interposed bet-Ween the screen 9-and the walls of the horn. Assuming that the microphone 5 is in action for the Y distribution of sound to the Iamplifying horn, it shall be imagined that the projecting apparatus 10 is functioning for the projection of .pictures into the mirror '14, and that dueto are, finally, projected ontA the exhibiting screen 9. y A

I have stated that pictnresof obj ectsin mo` tion or scenes of suitable kind are intended to be projected in synchronism with the action 'of delivering sound from the apparatus. ByV Vthis I do not mean that I have shown herein any order `ot' the .parts"wherein the soundV means is automatically timed to function with the picture projecting means'. I do mean for the purpose of illustration that the strip 15 can bear any suitable pictures in 'series or sequence which, when projected upon lthe screen 9, will characterize animated' action. of suitable sound; For instance, it canv be assumed that the sound coming from the microphone 5 is the reproduction of the voiceof a vocal artist, orator or the like, and to make the action of the apparatus entirely animated, the scenes or pictures of the objects on the strip 15 may be images of the person Whose voice is being projected through timelyactions of the' microphone 5.

The projector 10 may be of the electrically actuated type, and in such event a controlling switch 16 can be mounted. at the front of the cabinet.l Thev microphone 5, which is also electrically actuated, may be controlled by a similar switch v17.

lThe feature of the invention upon which I desire to lay particular emphasis is the combination with an amplifying horn of the general character shofwn and illustrated herein of means for permitting pictures of objects to be projected through the horn where they may beA visualized from a point in front of the horn and by means particularly contained Within the horn. Y.

I claim: t

A sound reproducing and picture exhibiting apparatus compristing a c abinet, a loud .speaker mounted in said cabinet and being conical-shaped, a transparent closure for the small end of the loud speaker, a screen dis- -posed in the loud speaker and being spaced a slight distance away 'from the front, the marginal 'edges' of said screen lyingl inside of the Walls 0f the speaker for permitting sound Waves to pass, a picture-projecting mechanismp'disposed in back of the speaker for projecting pictures through the transparent closure and onto the screen, a sound producing member, and an open-throated outwardlyflaring tube connecting the last named member with the loud speaker.

ALBERT T. MARSHALL. 

